[Dovecot] Dovecot 1.2.13 intermittent authentication failures

[C. Bensend]

> So it's either
>
> NUL username NUL password
>
> or
>
> username NUL username NUL password

It's username then password.

> Wonder if it has to do with a single process doing multiple lookups.
> That's the main difference compared to SSH and pretty much everything
> else.

I upgraded the server again today to the latest and greatest
snapshot of both OpenBSD and the packages, with no change in
behavior.

This is crippling me...  This morning, I wasn't able to authenticate
at *all* to my email, via either Squirrelmail or via IMAPS (my
Droid smartphone).  After rebooting the system, it worked again
while randomly failing.

Should I try the straight dovecot package instead of the postgresql
flavor?  I'm not *using* PostgreSQL to authenticate, but it could
cause an issue I guess...

One more thing - I ktraced the dovecot processes, and caught the
failure:

 24165 dovecot-auth CALL  lstat(0xcfbbff58,0xcfbbfd00)
 24165 dovecot-auth NAMI  "/usr/libexec/auth/login_passwd"
 24165 dovecot-auth RET   lstat 0
 24165 dovecot-auth CALL  socketpair(0x1,0x1,0,0xcfbbfeec)
 24165 dovecot-auth RET   socketpair 0
 24165 dovecot-auth CALL  fork()
 24165 dovecot-auth RET   fork 22689/0x58a1
 24165 dovecot-auth CALL  close(0xe)
 24165 dovecot-auth RET   close 0
 24165 dovecot-auth CALL  write(0xd,0x8357d0fc,0x1)
 24165 dovecot-auth GIO   fd 13 wrote 1 bytes
       "\0"
 24165 dovecot-auth RET   write 1
 24165 dovecot-auth CALL  write(0xd,0x860dc66c,0x9)
 24165 dovecot-auth GIO   fd 13 wrote 9 bytes
       "OBSCURED\0"
 24165 dovecot-auth RET   write 9
 24165 dovecot-auth CALL  read(0xd,0x8550e034,0x2000)
 24165 dovecot-auth PSIG  SIGCHLD caught handler=0x1c02a8f0 mask=0x0
 24165 dovecot-auth RET   read -1 errno 4 Interrupted system call
 24165 dovecot-auth CALL  write(0x8,0xcfbbfa77,0x1)
 24165 dovecot-auth GIO   fd 8 wrote 1 bytes
       "\0"


Does that help at all?

Thank you so much!

Benny


-- 
"Something's going on in this house - last night, I saw a face!"
"Did it have a nose?"
"Yes!"
"That sounds like a face all right."
                                      -- Scary Movie 4